Mie-scatter 010	Luminosity 046	Schlieren 010	Schlieren 046
Camera	Phantom v7.1	Phantom v7.1	Phantom v7.1	Phantom v7.1
Lens f, f/#	50 mm, f/1.2	50 mm, f/1.2	50 mm, f/1.2	85 mm, f/2.8
Filter center, fwhm	<600nm	<600nm	532 nm, 0° inc. mirror	450 nm, 50nm
Lighting	532 nm CW laser side illumination	–	Xe arc lamp	450 nm LED
Frame period [µs]	50	50	21.25	26.25
Exp. time [µs]	46	46	2	10
Movie: Play or right-click to download mpg		Luminosity		Schlieren
Description	Mie-scatter and combustion chemiluminescence and soot luminosity are visible. Mie-scatter luminosity is out of focus because of the low f/# needed to simultaneously collect combustion luminosity. Soot luminosity background is dynamically corrected.	With laser off only combustion chemiluminescence and soot luminosity are visible. Flame clearly exists at the injector after the end of injection, and soot luminosity forms from poorly mixed, but vaporized, fuel (no Mie-scatter is visible because there is no laser illumination).	Schlieren movie obtained simultaneously with Mie-scatter movie. Flame border overlaid at 50 counts threshold. Schlieren movie shown with and without corrections for background schlieren effects from the ambient. Soot luminosity adds to the schlieren light because of broadband light collection.	Schlieren movie obtained simultaneously with luminosity movie. Flame border overlaid. Soot luminosity now not visible in schlieren because of bandpass filtering.
References	SAE 2010-01-2106	SAE 2012-01-1239	Pickett, 2010; Pickett, 2009;	SAE 2012-01-1239